rockford p300 amp install

im89

i never installed an amp before. I have an idea but would appreciate some input.

This is what i think im suppose to do:

-I know when i hook up the up the amp i have to get power from the battery.
-Im going to run that through the gromet then to the kick panels to the amp. -Then i have to ground it im not really sure where to and exactly how to.
-Do i just screw it to a piece of metal on the car? i have the bose navigation with bose speakers.
-So i bought the MTX re-q, this i have no clue on how to hook it up. My guess is tap into rear speaker wires? i dont even realy know what that means.(my guess is add the connection to my rear speaker wire but cutting them then connecting them all together.)
-Then i have to connect the subwoofer to the amp.


If there is any input on this please feel free to add or help. If you guys think i shouldn't do it because i could mess up my car also let me know. People told me it was an easy install thats the only reason i might give it a shot. I installed my back up camera from the group buy with little knowledge of car audio and just advice from guys on the forum.

Equipment i have for install (If you could recommend any tools that would be great):

Rockford P300-1 amp
Kicker Wiring Kit
MTX re-Q
JL Audio 12w3v3-2 (will switch to a smaller 8" sub)
zenclosure subwoofer box
subwoofer speaker wire.