I just bought a 2000 GP SE yesterday. When you put the car in drive it locks all the doors and when you turn off the key it unlocks them. I don't like this so I read in the manual how to change it but I'm having some problems.

The car has an aftermarket HU in it so I would guess thats why I'm not hearing any of the chimes it tells me to listen for. I know how it is set up now and I know what I want so I should be able to hit the lock button the right amount of times to toogle through the options and turn off the key and put the fuse back in and it should change but no luck.

In the manual the first row of what chimes/what options is empty. Is it possible my car just doesn't chime and I can't change the door locking option? The next row is two chimes and it has a few options to adjust.

My car seems to be a pretty base car. No keyless entry just power locks.

Thanks!