if you have the 6 speaker stereo there should already be anamp inthe trunk. in which case why not remove the merc amp and use its power supply?

of courxe if you have the standard stereo you will have to route a power line through the grommets on the firewall. theres one behind the rear seat as well to give you access to the trunk.

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'O=00=O'
bmw 2002.
long live the legend