Radio not working right.

[Sleeperc10]

Hello everybody,

Im having troubles with my radio. I install an aftermarket stereo and everytime I turn my truck on it restarts the truck. Any help will be very appreciated.

[Sleeperc10]

I just read it and it doesnt restart the truck it restarts the radio, my bad haha.

[jimmydean]

Do you have both switched 12v and constant 12v connected? One turns the radio on when the key it on, the other saves your radio presets and clock.

If you don't have the 12v constant hooked up to a constant 12v source, your clock and radio presets will not stay set when the truck is turned off. Cig lighter is often a 12v constant.

If I am understanding the problem correctly.

[Sleeperc10]

You are fully understanding what im trying to say, I will check my connections.

[jimmydean]

Depending on what year truck, you could tap a hot side of a fuse for a quick 12v constant, unless you know one to tap.

I have reverse my 12v connections before.

[Sleeperc10]

I have a 72 short bed, Do you have any pics of the fuse box on your truck so I could see how you wired it?

[jimmydean]

Mine isn't wired to the fuse box, but it's an easy option if you need a source. Just use a test light with the key off and check each fuse to see what one has power with the key off. Then get a fuse tap from the local auto parts store and tap the hot side, or tap the wire. Depending on how clean you want to run it.

[Sleeperc10]

Where is your wired too?

[jimmydean]

In my '92 it is wired off the factory radio harness, in my '66 I am using an all new harness with accessory connections for it (but my '66 doesn't use a traditional deck, it is running a tablet).

[motornut]

the voltage drop from starting the truck will cause the radio off and on again too