Changed my clarion radio to a newer in in dash retractable clarion radio on my 1999 Carerra and it seems to be draining the battery. Help

Try disconnecting battery. Then re-connect the battery and type in the correct code.

You could try the factory default code, which is 0000. There is some confusion whether Suzuki/Clarion produces these audio units with a preprogrammed lock code (0000) or not, but its worth a try. If a previous owner has set their own personalized code then there is absolutely NO way for you to work around it. The audio unit will have to be removed and returned to Clarion for reprograming. A Suzuki dealer can help you with this, but they can not unlock the radio, only Clarion has that ability.

Three most popular things that will drain a battery. Radio, starter, and the alternator.

I don't know what kind of 1999 carerra you are talking about; I have a 1999 carrera convertible, and both the front and engine hoods are opened when pulling on the appropriate lever next to the drivers seat. No fuse/solenoid involved.
Lew Andersen

Don't you have some warning lights on your dash? MB cars are fly-by-wire that tend to depend so much on battery electricity when shut off. Use a high amps battery or battery recommended matching your car model. Check on some instruments that can be a parasitic drain to your car like, car alarm, sticking relays on auxiliary fans, radios. Worse you have a short somewhere or a wiring harness issue, but it should be giving you a warning on the dash.

u have triped the anti theft and may have to go as far as puttinig old radio back in

i have the same issue, did you find a fix? Mike

pull the radio back up fuse-reset the radio (has to be left for at least 10 seconds) then plug back in-if issue still present requires new unit.
beleive clarion has the contract for kia/hyundia audio. anyways aftermarket unit maybe cheaper-have a proffesional install it for the 20 bucks it gives you peace of mind and there liability.

Did this just start when you replaced the battery or was already giving problems? If so I would double check the terminals to make sure you have the blk to ground and the red to positive and nothing was pinched/pulled loose while changing it.

open passenger door and in frt door jam top of fender near door hinges there is a cable pull back to unlock , note bring into shop afterwards to diagnose if unlocking solenoid needs replacing

hi terk
check battery connections are secure if its been changed recent chances are its the live lead has not been fully seated on the cone prior to tightening