Also a new 08 Mazda5 GT owner

[Henika]

Hey Henika, you serious that HID can't be fit in on the 5?

Lol, welcome Derstar. You can install HIDs on our Mazda5's. I did on mine, and it works really well with the projector housing, best $150 I've spent on the car. The only thing is, that in Canada we have Daytime Running Lights, and on our car the DRL uses the same low beam running lower voltage. HID's will not like this, and will flicker. Using relay harness will not fix this problem. So the easiest thing to do is to ground the HID to the car, which means that HID will work as DRL.