My mercury stable 2004 was recently disconnected to clean the power chargers now my radio doesn't want to come on

05 grand marquis installing new stereo informed that I need

JustAnswer https://www.justanswer.com > Mercury Repair
Apr 6, 2017 - here are the radio wiring diagrams, I believe the feed you need is from the fuse 3 manual ac or 29 auto ac. The violet wire for power to radio.

1 answer · Top answer: Look at the firewall there should be some spots where existing wiring already comes through.

2000 Mercury Grand Marquis Stereo Wiring - the12volt.com

the12volt.com https://www.the12volt.com > installbay > stereodetail
2000 Mercury Grand Marquis car stereo wire colors, functions, and locations.

You need to input the radio security code because the battery was disconnected. If you don't have it see the Ford dealer (about $100.00 charge) or go here www.radio-code.com

did anyone one behind dash recently...sounds like speaker plug in disconnected from back of radio

That circuit F-2,may be shared with the cigarette lighter and it may be causing this,disconnect lighter wire and see if fuse still blows.

if you are having radio issues where you have to mess with the fuse to make it work i would say it is the culprit for the battery draw, a lot of radios trigger the eject when power is reconnected for the memory wire, that is not a problem with the radio.
try unplugging the radio and see if that fixes the battery draw.

One of two reasons.... it needs to be replaced or like in my case it's been wired wrong.... and that could also kill it

This sounds like something was wired wrong, hope there is no computer damage, the first step is to locate the fuse boxes and check all fuses first then remove the radio and check wiring.

I see this all the time. the power for night dash lights that was used to light the lights inside old radio is used on new radio and is sending power through radio and out ground wires to modules and computers, the new radio does not use the light wire, so double check all wiring even remove connector from radio if it keeps blowing a fuse. start there good day

Does it happen to say "CODE" ? Was battery recently disconnected or go dead? Ot's your theft deterrent radio and needs code to be unlocked. Check owners manual for small credit card size card, that has you code and enter it into your radio. If you don't have code, you're going to have to either have BMW or yourself pull radio and provide BMW the serial # off of radio.

Hi Cypher,

Good question, the answer is yes and no.

If you disconnect the battery, you can lose diagnostic codes, your radio may think it's stolen and lock itself, your clock will stop, etc.

If you leave it connected for three months, these items will drain the battery.

These items need very little power to run, but they do need power.

Leaving even a low amperage trickle charger on for three months isn't a great idea, that will kill the bat too.

You can set a charger up to a timer. Program it for 2 hours a night at 2 amps. That will keep it ready to go upon your return.

Best regards
Mike

sort in the wiring or just a **** radio