i bought a wrx with a SONY CDX-CA900 cd head unit already installed, everything works fine for a while but about every 4 weeks it loses it's memory and i have to reset it!
anyone got any idea what's going on?

 

Loose connection ?

Bad earth

 

i've had a quick look at the connections & they seem fine but if it's a bad earth where would i check it? & would the bad earth cause the display to dim when i turn the volume up as it does?

 

I am also having this problem in my car
Only my headunit resets itself everyday!
please help, someone must know how to fix it

 

it's just happened again!

i haven't got much hair left so i can't afford to pull anymore out!!!

please help...someone

 

dark nik,

If your headunit is losing the settings, say when you remove the keys from the car, then the permanent and the switched positive wires are round the wrong way. I had the same problem with an old Sony headunit in my old Golf.

 

mine isn't losing the settings every day, it's doing it about every month

funny thing is when i press the reset button all my station presets come back but the rest of the settings don't!

i just don't know what to do now, i'm a bit reluctant about going to a shop and asking them because i've had bad experiences with ice dealers in the past (that's why i've installed radios myself since, but i didn't do this one!)

you guys are the last hope that i'm clinging onto...please help!

 

Had the same problems with mine guys. It's usually just a case of swapping round the red & yellow wires. Well doing so has always worked for me!