Is it ok to power the switched power for my new head unit from purple/blue wire pin #16. Is this pin powered by fuse #27 (15 amp)? Crutchfield seems to think I need to pull a wire to the fuse box and draw from the windshield wiper fuse. I don't see the point if I have a properly fused circuit already in the harness. Also don't want any wiper motor whine.

Next question. The Crutchfield antenna adapter has a 12volt blue wire coming from a small silver canister inserted along its length. Pin #13 goes back to the diversity amp. Crutchfield tells me to ignore the power wire on the antenna adapter and to connect the power antenna wire from the JVC to the white wire (pin #13). Two questions, is this correct? and in the Bentley manual it calls fuse F 10 the diversity amp fuse. I am confused. The only connection I see to the diversity amp for voltage comes from the white wire in the harness. The block diagram in the fuse box lid shows 13 and 27 as both feeding the radio. I guess I would like to know what is feeding the power wires in the wiring harness.

Anyone who has done this and can help me out, I would really appreciate it.

Thanks

 

There are two 12V feeds to the radio, switched and permanent.
The feeds will be fine without needing a separate fuse, so long as the new HU is "normal" and doesn't have some sort of power supply boost and higher-than-normal output.

I've never used an antenna adaptor with power wire, so it clearly isn't needed. But I get my adaptors from MikeyTheMINI / NewMINIstuff in England - I think Crutchfield sell some sort of "euro" antenna adaptor suitable for more than just MINIs, presumably the extra wire is needed for some cars.

Don't know about F10, but you're right about pin 13 of stock HU feeding the antenna amplifier.

 

Hello.

I don't know who you talked to at Crutchfield but they gave you different information than the crutchfield guy who helped me with my install of an alpine deck.

First, you can pull a switched 12V directly from the harness, you don't need to run a separate line from the fuse. However, the harness they provide doesn't have a wire for switched 12V. What I did was to pull one of the unused wires out of the harnes (you can do this with a pair of skinny needlenose pliers). I forget which wire was an unused one in the harness but I think I used a blue or purple wire on the crutchfield harness. I used a voltmeter to verify which line from the harness was a switched 12V. I have a non-HK system and for me it was in the bottom right corner.

Also I hooked the blue antenna power wire to the switched 12V supply as well. Basically the blue wire is power required for the antenna to boost your signal. It's power you only want to draw when the car is on, hense pull it from the switched 12V supply.

I've just installed an alpine CDA-9883, MRP-F550 amp, MRP-M450 amp. I also just bought an armrest (I have a 2003 with no armrest), which has the perfect compartment to hold my new Nano (which is controlled by the apline deck). I took some pictures of my installation progress, but I didn't take any pictures of how I wired the harness sorry.