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Hey I was wondering if one of you guys could help me get this working.. I have a cd player that I want to install in my trunk, I already have a cd player in the dash but I want to put one in the trunk to so at car shows I can just pop the trunk and let it play music out the back? I was wondering instead of wiring it into my car.. Is there a way to wire sort of by it's self..? Maybe with a small 12 volt battery or with an adapter that converts 120v to 12 volt? Thanks in advance..

 
Rep Power: 360

House CD player or another car head unit???

If house CD player:
Get a 8 or 10 gauge wiring kit, and run power off the battery to the trunk. Get a power inverter and a cigarette lighter plug from radioshack. connect the wire from the battery/ground to the cig lighter plug. plug in the inverter. plug the power cable on the stereo into the inverter. done.

If its another car head unit:
Get a 8 or 10 gauge wiring kit, and run power off the battery to the trunk. Put the positive wires, usually red and yellow (both constant and switched power wires) to the power wire coming from the battery. Wire the rest like a normal hu to speakers in the trunk or even to the rear speakers.


Either way... Put a heavy duty switch somewhere on the power wire so you can cut power when at shows if you need to. Also remove the fuse by the battery when not at shows. Remember to have the fuse within 18" of the battery! And you MUST fuse the wire.

 
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Let's say I want it to run off it's on battery source..? It's a CD HEAD unit for a Automobile. I wanna basically in theory make a boom box out of it but it's gonna be in the trunk.. What other type of battery source could I use?

 
Rep Power: 786

you can use a second car battery, or you can do the easy thing and buy a wiring harness so you can just pull the HU out when you want.

personally I would just install additional speakers in the trunk, why bother with a second HU?

 
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I want the second unit so I can adjust volume change cd players without getting in the car.. Second car battery is to big..

 
Rep Power: 0

you want to have a seperate HU in the trunk? with seperate speakers? and you only want to turn it on sometimes? if so why you want it to run on it's own power? just run a fused (10 amp) 14 gauge from battery to yellow on the HU in the trunk, then connect another wire on the yellow wire to a switch, then from the switch to the red wire on the HU, now ground the black wire, then connect your speakers on the speaker wires from the HU (green, purple, white & gray). those speakers have to be seperate, don't hook up the ones already on your other HU.

 
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i'm SO glad you already posted that, cuz i wanted to help this dude out but didn't feel like typing all that lol...

or here's a novel idea: get a remote for your head unit and just add some speakers in the trunk... like i did

edit: DAMN that was a nice system lol