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I recently installed an aftermarket combined amp/sub in the car that I can easily remove and reinstate when required. As it was a detailed learning process during the installation, I thought I would share the final setup for anyone that is thinking about doing the same.
The unit I installed is the Rockford Fosgate P300-12T. It has an inbuilt amp so only requires power and audio connection. It has velcro strips that hold well to the floor, so it stays put.
The power connects directly to the battery (+) and the ground connection is on the left hand side under the floor (-).
After wasting hours online I went through the Workshop Manual (Wiring) and we decided that for the audio input we could tap into the original sub cables, which also meant the OEM sub remained connected and functioned normally. Therefore we were adding more bass rather than replacing it. When you disconnect the sub, it sounds like factory.
Initially it was a mission to workout, but once we worked it out it was so simple. To save you all a lot of time here is the location. Please note the wiring colour extract from the workshop manual lis not different for either the 11, 17 or 23 speaker system.
Hope this was helpful and happy to answer any questions you may have.
The unit I installed is the Rockford Fosgate P300-12T. It has an inbuilt amp so only requires power and audio connection. It has velcro strips that hold well to the floor, so it stays put.


The power connects directly to the battery (+) and the ground connection is on the left hand side under the floor (-).
After wasting hours online I went through the Workshop Manual (Wiring) and we decided that for the audio input we could tap into the original sub cables, which also meant the OEM sub remained connected and functioned normally. Therefore we were adding more bass rather than replacing it. When you disconnect the sub, it sounds like factory.
Initially it was a mission to workout, but once we worked it out it was so simple. To save you all a lot of time here is the location. Please note the wiring colour extract from the workshop manual lis not different for either the 11, 17 or 23 speaker system.


Hope this was helpful and happy to answer any questions you may have.