Run the conduit from the garage to the main panel box. The only way to do this was to mount the amp to the box itself.
2005 2014 Ford Mustang Subwoofer Box W Amp Mount Area Rack Type 1
Mount amp to sub box. Vibration shouldnt be a huge problem unless the amp manufacturer didnt account for it when designing the solder joints. I dont drill the screws completly through the box. It is from the flexing of the panel that the amp is mounted. Cut out a piece of wood to mount to the box then mount the amp to that panel and use rubber grommets in between the panel and the amp. Dig an 18 inch deep trench for the outdoor electrical wire which you will run from the main panel box to the garage sub panel. I absolutely definitely love it.
It is very bad for the amplifier. The real problem with mounting an amp to a box is the box flexing if not properly made. So for me i just love my car. You should properly secure the subwoofer in the trunk by using wooden plates. Do not mount amps to the sub box amplifier mounting. The flex of a poorly braced box will cause the vibrations out of the box.
I also put a foam padding between the amp and box to protect the amp from vibration if any. Meades setup is different he has very little flex from over building his enclosure. You could put the box on blocksstilts and put the amp underneath the box. I know that there has been a great deal of discussion over mounting an amplifier to an enclosure and many people do it all of the time with no problems but those people probably build good enclosures from 34 or thicker mdf with extensive bracing. Use 1 14 inch pvc conduit for a 100 amp sub panel or 1 inch pvc conduit if the sub panel is 50 amps or less. I then dont tighten the screws down completly tight just enough to keep the amp in place.
The proper way to mount an amp to a box is to get the amps mounting points as close to bracing as possible since that panel will not flex as much. Yes you can mount a subwoofer box in the trunk by using stripes bolts multiple hinges wooden base and metallic plates. Otherwise the safest way to mount the amp to the box is to double or triple baffle the area the amp will be mounted to as well as maybe a foam board or some rubber gaskets to further reduce the vibration. If at all possible avoid mounting any amps to enclosures. As soon as you mount the amp to the box the amp board and all components absorb every bit of vibration. Do not mount an amplifier on your subwoofer box.

















