I don't have time for videos at work, sorry.

 

No worries. It's there if you (or anyone else) gets a moment.

It's more there because it was mentioned, not only by you, that I need to wire one or the other. In my mind that isn't the case, and I am just trying to rule out whether I am bonkers (it's possible) or whether I did a poor job explaining what I have done.

 

Was I correct in that with the voltmeter I need to be checking between the battery and the ground and then the ignition and the ground? Just want to make sure I am testing properly as I have only minimal experience with this sort of thing.

 

Really quick, just kinda scanning the video, it looks like you are not getting the proper power to the Pioneer head unit.

Take your multi meter and making sure it's on DC volts run it across your battery, positive on one side, negative on the other. Make sure you get voltage.

Now go to the front of the car, find a bolt in the door jam, this will serve as your ground. Now check your ignition and battery wires in the Pioneer harness. These are usually a red wire and a yellow wire. You should get 12 volts on one wire with the ignition off, and then 12 volts on both wires with the ignition on. If you don't you'll need to check your connections.

Also, on both my R50 and R53, I needed to run an ignition wire from the fuse box to the radio to get ignition power. This wasn't provided by the factory on my cars. So, you may not have the correct power wire hooked up to the reverse harness that you installed (this is the harness you replaced the cracked one with).

Let me know what you turn up after this and I can try to help you more from there.

 

I get a clear 12v reading when checking the battery under the hood.

When I check the lines grounded to a bolt on the door jam I do not get a reading on either wire

 

I also went ahead and clipped the battery line (red/brown) so I could test the line directly (without my replaced harness being in between) and I don't get a reading on that either.

 

Did the same for ignotion (clipped)

No reading...

 

Sounds like you aren't getting any power... I'd check fuses next to make sure none are blown.

 

All of the fuses would be at the bottom left of the driver's side, right? Or am I looking somewhere else?

 

There are more fuses under the hood on an R53 not sure about the R50 R53 they are next to the ECU

 

Noob here... what is ECU?

EDIT: Engine control unit... cool. SO now to find this thing

 

Engine control unit (car brain) lol sorry if I wasn't clear before, I just saw that you have an R50 sorry, I'm not sure the fuses in the engine have anything to do with you issue do you have an owners manual?

 

I do have one. Gonna run outside and check. Unfortunately my phone reception isn;t great where the car is parked so I am running back and forth lol.

 

I'm not sure where they are located on the R50 but it should be on your owners manual if you have one, if you don't I'm sure that you could get it online

 

If I find the manual, what fuse(s) am I looking for?

 

I'm not sure which fuse you are looking for lol I was just letting you that there are more fuses under the hood (fuse box) besides the one inside the car by the drivers side footwell, you are looking for blown fuses right? On the cooper S there is an extra fuse box under the hood and one inside the car but I'm not sure if the R50 has and extra fuse box under the hood I imagine that it does but who knows, your manual should tell you.
The members above should be able to help you further with you issue I'm clueless about all of the other steps lol

 

Some useful electrical info listed in one place & hopefully easy to search:-
(please feel free to add more or correct any errors)

MINI Fuses / Relays / Earth Points


Engine compartment fusebox
F1 5A Digital engine electronics control unit
F2 20A Digital engine electronics control unit/Ignition coil/Cylinder 1-4 fuel injection valves/Crankshaft position sensor (From K6300 87)
F3 15A Camshaft position sensor/O2 sensor before cat/O2 sensor after cat/Solenoid valve, fuel tank ventilation/Relay K19 control power (From K6300 87)
F4 15A Tank Leakage diagnosis pump
F5 5A Relay, engine cooling electric fan (From K6300 87)
F6 30A ABS/ASC/DSC control module
F7 30A Magnetic clutch for AC compressor via relay K19
F8 30A control power K69923 Relay, electric power steering pump cooling fan/Switch unit Heating & A/C blower
F9 20A BC1 (X11177 2) unit via I01136 and I01137 (Relay front wiper motor fast/slow and Relay front wiper motor on/off)
F10 15A BC1/Left fog/Right fog/Switch panel via K47

FL1 50A Feed to F14, F31, F32 (BC1,Heating & Air con blower)
FL2 50A Feed to F1, F2, F3, F4, F19, F20, F21, F22, F23, F24, F25, F26, F27, F28, F37 (BC1, steering angle sensor, clock, instrument cluster, navigation, on-board monitor, wash/wipe, horn, audio system.)
FL3 -
FL4 100A Electric Steering control unit/Hydraulic pump
FL5 50A Feed to F15, F16, F17 (Sunroof, aerial antenna, rear wiper)
FL6 40A ABS/ASC/DSC unit
FL7 50A Feed to ignition switch
FL8 50A BC1 (X332 20) Headlight
FL9 50A DME unit and Switching unit 2-speed blower via I01135 (Relay electric engine cooling fan)
FL10 50A K416, Relay heated front screen
FL11 50A Switch unit, 2-speed blower heating & air con
FL12 50A BC1 (X332 17) Headlight

(Note: Sometimes 'F0' fuses below are labeled 'F' only in Eng. Comp. Fusebox)
F01 5A Engine Control Module (ECM), Convertible top control Module
F02 20A ECM, ignition coil, fuel injectors, crank position sensor
F03 15A Engine control
F04 15A Engine control
F05 5A Engine cooling fan
F06 30A ABS/ASC/DSC
F07 30A Air Con compressor
F08 30A Heating A/C blower, EHPS cooling fan
F09 20A Windscreen wipers
F010 15A Parking lights

Passenger compartment fusebox
F1 30A BC1 (X332 3) power windows LH
F2 5A Steering angle sensor
F3 5A Digital clock/Outside mirror fold-in control unit
F4 5A BC1 (X254 27) Constant power
F5 5A Control module for instrument cluster/Diode (From Electronic immoblizer control unit)
F6 5A Brake light switch/Clutch switch module/Electronic immobilizer control unit EWS
F7 5A BC1 (X254 36)/Rain sensor
F8 5A Turn indicator/low beam switch
F9 5A Control module for instrument cluster
F10 5A Navigation computer/On-board monitor control unit/Radio control unit
F11 5A K119, Relay, rear washer pump/K5 Relay, front washer pump
F12 20A Ignition switch to heated seats
F13 5A Reversing light switch/CVT switch
F14 10A BC1 (X332 14) Constant power to interior/reading lamps
F15 20A Sunroof module control unit
F16 30A BC1/Rear window w/o antenna or Wave trap 1 w/ rear window antenna via K13/ Heated rear screen
F17 15A BC1 (X254 43)/Rear window wiper motor via I01142 (Relay rear wiper motor)
F18 5A Hall sensor driver & passenger buckle/Multiple restraint system (SRS system)
F19 30A BC1 (X332 7) power windows RH
F20 20A K96, Fuel pump relay 1
F21 10A Control module for instrument cluster
F22 15A On board monitor control unit/Navigation computer/Eject box
F23 20A K5 Relay front washer pump/K119 relay rear washer pump
F24 5A Electronic immobilizer control unit/Horn for antitheft alarm system EWS
F25 30A Headlight washer pump via K6
F26 10A Automatic transmission
F27 15A Radio control unit/CD Changer/Amplifier
F28 15A Volute spring/Right horn/Left horn via K2
F29 5A Heating and AC control module/Sensor interior temperature fan
F30 5A Instrument cluster
F31 30A BC1 via K4 (X253 23) Heating & A/C blower
F32 15A Front cigar lighter via I01151 (Relay cigarette lighter front)
F33 10A ABS/ASC/DSC unit
F34 10A Digital engine electronics control unit direct and via K96/Eng management main relay
F35 5A Mirror adjustment switch/Electrochrome rear view mirror/Windscreen washer jet heater/Outside mirrors
F36 5A K416, Relay Heated front screen
F37 20A BC1 (X332 1) Central locking
F38 -
F39 5A Alternator/Electric Steering control unit/hydraulic pump
F40 5A Control module for instrument panel/Switch panel/Steering angle sensor
F41 5A Park distance control unit/power to K69923, Relay fan steering control module/pump
F42 -

MCS Only - Luggage compartment fusebox (M.Cooper / M.One direct battery feed)
F100 250A Feed to FL1, FL2, FL4, FL5, FL6, FL7, FL8, FL9, FL10, FL11, FL12, F1, F6, F7, F8, F9, F10, K6300

For Ref.
BC1 (Body Control Unit)
Located behind kick panel - drivers footwell (UK) / passengers footwell (USA / Europe)
4 Connectors:-
X332 20 pin (green)
X253 54 pin (black)
X254 54 pin (natural)
X255 54 pin (blue)

IDs for Relays / Location
K42 Horn relay / Behind Passenger compartment fusebox
K4 Heater-blower relay (up to March 2003) / Engine compartment fusebox
K4 Heater-blower relay (from March 2003) / Passenger compartment fusebox
Control: BC1 (X253 23)
Switch: M30/A11
K5 Relay washer pump front / Behind passenger compartment fuse panel
K6 Relay Headlight washer / Passenger compartment fusebox
K13 Relay rear window defroster / Behind Passenger compartment fuse panel
Control: BC1 (X254 22)
Switch: Rear window defroster
K19 Relay AC Compressor / Engine compartment fusebox
K47 Front fog light relay / Engine compartment fusebox
Control: BC1 (X254 40)
Switch: Left fog light/Right fog light/Switch panel light
K96 Fuel pump relay / Passenger compartment fusebox
Control: A6000 (X60004 24)
Switch: M2
K104 Relay auxiliary water pump
K119 Relay washer pump rear / Behind passenger compartment fuse panel
K416 Relay heated windshield
K6300 DME Main Relay / Engine compartment fusebox
control: A6000 (X60004 16)
Switch: F02/F03/F04/F05
K69923 Relay EHPS fan power steering / Behind passenger compartment fuse panel
I01135 Relay Engine cooling fan stage 2 (from March 2003) / Engine compartment fusebox
I01136 Relay front wiper fast/slow / Engine compartment fusebox
I01137 Relay front wiper on/off / Engine compartment fusebox
I01142 Relay rear wiper / Behind Passenger compartment fusebox
I01148 Relay Shiftlock / Passenger compartment fusebox
I01151 Relay front cigarette lighter / Behind Passenger compartment fusebox
I01152 Relay Engine cooling fan stage 1 / Engine compartment fusebox

Body Earth Locations
E1 LH rear of engine compartment
E2 LH front of engine compartment
E3 RH front of engine compartment
E4 RH side of footwell
E5 LH door sill
E6 LH side of luggage compartment
E7 RH side of luggage compartment
E8 RH door sill
E9 LH door sill
E10 Behind LH rear window trim panel
E11 Behind RH rear window trim panel

Engine Compartment Fusebox

The high current fuses FL1-FL5 are underneath (on the bottom) of the Engine Compartment Fuse panel. High current fuses FL6-FL12 are on the right.

Fuses F1-F10 are on the left but are indicated in Mini wiring diagrams as F01-F010
Attached Thumbnails

 

Checked the manual. The manual essentially points to their location (it only spoke of the bottom left driver's side).

Removing the cover there is a key showing which fuse goes to what.

The radio fuse looked perfect. Just in case, I replaced it. Still no reading on the multimeter.

 

Your link above refers to the passenger compartment. Is that written for the right-hand-drive vehicles? As far as I can tell thre are no fuses on the passenger compartment (left-hand-drive USA vehcle).

 

My mistake, I went and checked the wiring harness of the pioneer that you have (DEH-X6600BT) compared to mine (DEH-X9600BHS). You do not have an illumination option in your headunit. However the blue/white wire on the pioneer harness should be going to the power antenna/pin 13 of the original harness.

The 'alpine' diagram I was referring to was the first diagram that you linked of the factory unit (titled: Mini Single Slot CD Head Unit).

From the rest of the discussion so far this doesn't sound like your greatest problem though, good luck!

 

So... progress...

Turns out there are two fuses I needed to check. One was blown

Stock unit now works, however it does not turn off when the ignition is turned off. I can also power the unit now without keys.

The pioneer unit is still not receiving power.

 

Check you wiring more slowly. Build a wiring diagram. It sounds like the IGN is either backwards or shorted or missing.

 

Can you help me understand how the IGN can be backwards? It is pin 16 on the harness.

 

The r50s and r53s I've seen do not have a true ignition wire.

Run a wire from a fuse that only gets power when the ignition is on. Connect this wire to the ignition on the pioneer head unit.

Try this. It should work.

I also had the same issue when I reinstalled my stock head unit in my r50, it would power on whenever.

 

Ok. I guess this is promising. Unofrtunately I don't even know where to start with running a wire from a fuse.
I guess I would need soemthing like this: