Hello tsikoteers! Im planning to upgrade my Toyota Vios 1.3J's headunit from stock to something better. Now I went to banawe and didn't feel like all the shops where selling original items. (I had a bad gut feel about buying there)

Now can anyone tell me a shop that is sure to be trusted and can install my head unit without fail in banawe? Cos I heard some shops did a bad installation job such that you could hear static once the head unit is turned on.

Any help will be appreciated!

FYI, I'm looking for a head unit which has:
-mp3, usb, graphic equalizer (low to high pitch)

Pero responsibility ko na bumili ng brand at model. Just want to know a trusted shop. Thanks!