Wierd electrical problems after trying to remove OEM headunit

As the title says i’ve been trying to remove the standard headunit in my mk2.5. I managed to get the left hand side of it free pretty easily by sticking a screwdriver in the upper central hole and pulling the unit, but i spent about 3 hours trying to get the right hand side free and it just won’t budge.

Anyway, after wrestling with it for a while i got bored and flicked the sidelights on which somehow also triggered the central locking system to unlock the doors [^o)], tho they were already unlocked, and it did this every time i flicked them on. I turned the ignition on and tried and then all was normal, so i turned it off again. Then i tried again and it did the same again but this time locking the doors. When i use the key in the doors i have to turn it twice (e.g. lock, back to the middle and lock again) for it to operate the central locking and the indicators don’t flash to confirm it anymore. Also the engine management light comes on when the engine is running.

Have i just disconnected an earth or something? [*-)]

 

PS. any nifty tricks on getting the headunit free would be welcome as its doing my head in. Ive used the guides linked to in the ICE thread but i just can’t get the right hand side free.

Ok an update: got the unit out, finally [8-)]

I still have the slightly dodgy central locking issue and the engine management light but no doors locking or unlocking themselves. Main thing is that the new headunit doesn’t power up (the old one suddenly stopped working too for some reason after yanking it about a bit, even before unplugging it tho), and the interior light doesn’t work, am i right in saying that these are on the same fuse? Cigarette lighter doesnt work either. I took the fuses for the cig lighter and “radio” out and had a look and they look fine. Theres no fuse in the slot for “Audio”… is that just for the Bose amplifier in the bose systems?

Fixed [:D] cause was the blown 10A “ROOM” fuse under the dash. All working perfect now. [:)]