I installed the mirror on our Mazda3 and it wasn't bad.
The hardest part I found was removing the A-pillar trim. You have to pop it out a little and then grab a little tab down inside and release it to get the trim loose. Also the stock mirror on the 3 just clips on so I had to fashion a tool out of a coat hanger to release it and I was sure I was going to break something.
On the CX5 it shows you just unbolt the mirror to remove it. The A-pillar trim would still take a bit but it shouldn't take long at all; especially for someone that knows what they are doing and isn't afraid they are going to break it the whole time. Plus on the 3 I had to go all the way down and connect it into wiring in the foot-well area, whereas on the CX5 there's a connector you use behind the A-pillar trim.
I've uploaded the install instructions to:
http://mazda.handa.com/cx5/cx5mirror.pdf
Basically they just have you:
disconnect the battery
pop the top section of the door seal loose around the a-pillar trim
remove the plastic a-pillar trim (pop it loose and then use pliers to release the inside holder)
unscrew the mounting screw from the old mirror and slide it off
slide on the new mirror and tighten the screw
plug in the harness and route the wire up to the headliner
route the wire under the front edge of the headliner and down the a-pillar
unplug the connector that is already there and plug the mirror wire in-between
re-install the a-pillar trim
push the door seal back in place
connect the battery and calibrate the compass
The hardest part I found was removing the A-pillar trim. You have to pop it out a little and then grab a little tab down inside and release it to get the trim loose. Also the stock mirror on the 3 just clips on so I had to fashion a tool out of a coat hanger to release it and I was sure I was going to break something.
On the CX5 it shows you just unbolt the mirror to remove it. The A-pillar trim would still take a bit but it shouldn't take long at all; especially for someone that knows what they are doing and isn't afraid they are going to break it the whole time. Plus on the 3 I had to go all the way down and connect it into wiring in the foot-well area, whereas on the CX5 there's a connector you use behind the A-pillar trim.
I've uploaded the install instructions to:
http://mazda.handa.com/cx5/cx5mirror.pdf
Basically they just have you:
disconnect the battery
pop the top section of the door seal loose around the a-pillar trim
remove the plastic a-pillar trim (pop it loose and then use pliers to release the inside holder)
unscrew the mounting screw from the old mirror and slide it off
slide on the new mirror and tighten the screw
plug in the harness and route the wire up to the headliner
route the wire under the front edge of the headliner and down the a-pillar
unplug the connector that is already there and plug the mirror wire in-between
re-install the a-pillar trim
push the door seal back in place
connect the battery and calibrate the compass
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