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    head unit wiring problem

    i was wiring a head unit into a 03 oldsmobile alero the other day and i got the factory wiring diagram off of modified life. com. first of all the factory bundle doesnt have an illumination wire and the diagram said that the 12v switched wire is "class 2 data" what the hell is that? ha ive never seen something like that the switched is usually a solid color.. and i checked all the unused wires with a dmm when the key was turned to accesory and theres no other hot wires other than the constant which i have hooked up already. any suggestions? i cant figure out how to get this thing working







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    Re: head unit wiring problem

    if you just need a switched power source it should be easy enough to find with a dmm and the fusebox. try the cig lighter.

    who needs dimming





    Quote Originally Posted by eharri3 View Post
    I have 4 12s getting 2K watts rms and my front stage is 4 Walmart JVC coaxials running off 16 watts rms of head unit power. My sub sounds fine but my mids and highs don't sound very clear and start to distort long before my subs do. Anybody know why? Any suggestions?

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    Re: head unit wiring problem

    why dont u just goto wal mart and spend $5 and get a wiring harness? it plugs right in....




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    Re: head unit wiring problem

    you dont need an illlumination wire? becuase on one car i wired we couldnt get it to work and then found out it was because there was no illumination wire hooked up. and the headunit should work without the switched connected right? cause its not doing anything yea but the constant is aready wired as well as the ground




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    Re: head unit wiring problem

    you need 3 things to power on... constant 12v, ground, remote.





    Quote Originally Posted by eharri3 View Post
    I have 4 12s getting 2K watts rms and my front stage is 4 Walmart JVC coaxials running off 16 watts rms of head unit power. My sub sounds fine but my mids and highs don't sound very clear and start to distort long before my subs do. Anybody know why? Any suggestions?

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    Re: head unit wiring problem

    class 2 data is the databus that goes to the bcm

    edit- and I cant believe this day in age people still cut off factory plugs



    refs
    woc47, nigro013, defconx3, louisiana_crx, bld 25, supa_c, lancer1978, sxkicker89, 310w6, more, i forget

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    Re: head unit wiring problem

    Quote Originally Posted by jdawg View Post
    class 2 data is the databus that goes to the bcm

    edit- and I cant believe this day in age people still cut off factory plugs
    X2. stupidity. tellin u $5 at wally world gets u a wiring harness, all colors match up and just crimp em together




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    Re: head unit wiring problem

    yea i relize that its not my car tho the kid just wanted to me to splice them




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