i recently bought this item off ebay http://cgi.ebay.com/ebaymotors/SCION...QQcmdZViewItem

to fit a sub that has a mounting depth of 6.2 inches but the enclosure is too small so i need a spacer for it. i went to my local 6th ave electronics store and they told it would cost $150 just to have the spacer made plus installation of the sub and amp. i dont know too much about this stuff but that seemed ridiculous.

can anyone recommend an honest shop within the vicinity of hackensack, nj hopefully within a half hour driving distance?