I got tired of the mediocre sound of my factory "E-Tech" speakers so I ordered a pair of Jensen MSX60RV 6.5 inch waterproof marine grade speaker from Jensen Direct. They are UV and salt spray standard compliant and have a 75 watt max power handling rating. My old speakers were smaller and the new speakers required that I enlarge the opening to 5 inches. This was easily accomplished with a jigsaw and some tin snips. I also added an old Technics audio receiver that I had in storage and I placed it in the top cabinet of my outside kitchen where it connects to my satellite receiver. Overall I am very pleased with sound improvement and would highly recommend this upgrade.
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2012 F-350 4x4 King Ranch Super Duty CC 6.7 Turbo Diesel 3.55 e-locker
2011 Palomino Puma 30KFBDS with Side Paw Kitchen and Bunkhouse
Equalizer E2 Hitch