Hi all.. I have a 2k2 Maxima, and just installed an aftermarket Head unit. The stock head unit has 4 plugs.. I bought a wiring harness for a 2k1 max and it fit perfectly for 2 of the 4 plugs. The 2 plugs provides all of the functions for the aftermarket HU (speaker, amp, antennae, power, etc.) The aftermarket HU works totally fine with the other 2 plugs not connected to anything. I'm assuming one goes to the changer, and the other goes to the steering wheel controls.. now comes my question

My trip computer controls on the steering wheel will no longer cycle through the modes of the computer. I'm thinking (for some dumb reason), the trip computer controls goes through the stock head unit. Is there anyway I can redo some of the wires out of the 2 plugs that I left unplugged to get my trip computer working again?? I'm thinking if I can connect some of the wires together it would work.. anyone have any ideas/wiring diagrams??

Thanks...

 

I'm having the same issue. Please let me know if you figure this one out.

 

My understanding is there is a brown wire that needs to be grounded in order for it to work.

I'm sure others will chime in or you could do a search as I'm sure I read it on here.

Edit: I just noticed you brought back a 6 year old thread instead of searching. Please put on your suit...

 

this has been discussed and answered in the audio/electronics forum

 

What a nice guy you are, no flaming.

 

That is where i found the same answer myself 6 months ago and it worked for me.

 

You can retain the full function of your steering wheel controls & trip computer by doing the following (which is mentioned in the Audio FAQ's)...

"How do I make the steering wheel controls work with an after market head unit?"

This is a two step process. First you have to obtain the PAC-SWI adapter from Crutchfield or some other mobile audio dealer. This will allow you to utilize the radio functions on the steering wheel.

Secondly, to regain use of the trip computer (the one with temp, DTE, MPG, etc.) you have to first locate the small wiring harness you removed from the stock deck, but didn't use in the install of your after market deck. This is a small harness with 4-5 wires in it. One of these wires is brown with a white stripe/marking. This wire must be cut from the harness, the stripped and grounded. I recommend grounding it to the large metal peice below the vents (you can use a small screw or electrical tape), or any other grounding site. This will now give you full use of all steering wheel controls.