12 volt chargers are dead, sun roof switch worked intermittently and is now inoperable, and trunk will not lock- I'm getting a "click" from under the passenger side dash. I have an obvious electrical issue- fuses and/or voltage issue due possibly to battery change a couple months ago. I don't want to go to the dealer uninformed. I know there are 4 fuse boxes, but the concern is the intermittent loss of use of the sun roof and trunk lock. Both DID NOT go out completely, but began not to work and now out completely. Any thoughts are appreciated. Thx.