Battery drains over night,never had this problem,radio will not operate with code,tried several times ,still no go, did battery problem start because of this radio problem?

Try removing the radio/amp fuse over night. If still dead, look elsewhere for your draining problem.

Have to do a Parasitic Current Drain Test, to find
the circuit with the fault,then component test items
in that circuit

You have a module,relay or other item, not timing out
or going to sleep

You can have failed switches in the doors,failed alternator
diodes,many things that can cause that

Even the Evap System, which on some cars, run tests while
your sleeping, can be at fault

Check for OBD Codes in all Modules, with professional scan tool,
then do the drain test, leaving the doors closed

You can run your radio a number of days and will not run the battery way down. I had a car that did that and each night when I shut the car off I disconnected one fuse and did that till the battery did not run down. It took several times and I would write down the fuse I pulled. I found something was malfunctioning in my air conditioning switch area. My mechanic replaced something and is ok now. Not saying that is your problem.

I suspect parasitic draw. All vehicles draw some power from the batteries when the car is shut off. Certain accessories such as clocks, radios remote door openers and alarms always need power. The normal power used is called parasitic draw.

It is always a very low draw so it doesn't run the battery down. If you install accessories like shortwave radios or plug things like inverters and portable refrigerators into the accessory socket and operate them too long without the engine running you can drain your batteries to the point where the engine won't start. If there is an electrical short in the vehicle or a malfunctioning accessory it could be drawing much more than its normal load causing a drain on the batteries. If you leave your door open and the inside lights stay on all night you could drain the battery down till the car won't start.

Here's also a good resource for your car specifically on narrowing down the cause of the drain.

try a tester on the alternater when the car aint running or if you have recently fitted a radio maybe you got the wires wrong way round and its on power all night

first unhook the battery overnite the see if it starts in the morning if it doesnt the battery is bad, if it does a diod is bad in the alternator and draining the battery down, change the alternator

Is your serpentine belt in good condition? It may be slipping due to wear or a ceasing pulley or water pump. Release pressure on belt & make sure all is well with contacting pulleys. Change belt if excessive wear noted. Good luck!

both,the battery has been run down too many times and your radio have a heavy power draw,if you have an aftermarket alarm it may have something to do with the problem.

It would be best to pull the radio fuse leaving it out for several minutes then replace it. tis may well fix the problem but if it doesn't you can remove the fuse agin knowing it will not drain the battery over night

it could be a faulty battery or you have a constant drain on the battery, i.e alarm/ radio/central locking if installed any drain on the battery needs to be checked..