Stereo wiring i lose all memory and settings every time i shut off my truck. what am i doing wrong? thanks Teddy

Sounds like your Memory +12V wire is not connected properly. If this wire does not have a constant source of power then you will lose all of your settings on your radio.

Things that may cause you to lose power through the Memory 12V wire:

• Not hooked up properly to the battery
• Bad battery
• Bad ground
• Loose wires

Boss 637UA manual

There are generally 2 power wires on a stereo. One is tied into something that only comes on when the ignition is turned on and the other must be live at all times to retain memory.

Make sure the red wire on the unit is hooked up to power. The blue antenna wire is hooked up (or to the factory amplifier) and the yellow wire on the radio is hooked up to a key on power supply. If it works and you lose the memory when you shut the key off, switch the red and yellow wire power supplies.

Usually car stereo's have two wires that supply power, aside from the ground. One has power all of the time, for your memory and clock. The second is for when you turn the ignition key on, to allow the stereo to come on. It sounds like you have a power wire going to the the wrong one.

The memory (unswitched) wire, usually yellow, is not connected to a "hot all the time" connector...or its fuse has opened.

if this is not the original radio, then the wiring is wrong on your replacement. With the replacement radio, theres a wire that needs to be connected to Battery (+). this keeps presets and clock from losing memory

You can run the power lead to the one in the original harness, the one for the clock is low draw and can be attached to any accessory fuse in the fuseblock that is hot all the time but nothing that has anything to do with operating systems like computer etc. They supply two grounds so that everything is properly grounded. I usually extend one ground lead and attach it to a different ground source other than the dash.

sounds like a very common power wire issue. if not connected to the cigarette lighter or other continous power source when the car shuts off all memory will be lost, ie... audio settings, station memory, clock memory

You need to Check the Wiring Harness from the Stereo. There is a Constant Power Memory Wire (Should be Yellow or Orange). This needs to be Connected to the Cigarette Lighter Power Wire for Constant Power Memory. Please Rate My Response! Thanks!

check your wiring in your vehicle to make sure that the yellow wire from the stereo gets "constant" power. It it what keeps your stereo's memory, and powers the audio amp in the stereo. If this wire is loosing power when you shut the key off in your car, you will loose all of your settings...bass, treble, tuner, clock, and also where you left off on your CD.