Power lock problem

OneBad89SC

Registered User
Posted this awhile ago,but to no avail.
So for your viewing pleasure here it is
again.

I have an '89 SC with key pad unlock.
Doors unlock with that,but not the door
switch.An alarm installer told me it's due
to the fact an old alarm system fried box
in the trunk.Switched the black(coded for key
pad)no help.Then switched grey,which I thought
controlled the power acc.Still nothing.
Anyone help?
 
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