FUSION Retrofit Kit 600/700 to RA770 with Silicone Cover - 010-12829-00FUSION Retrofit Kit 600 700 to RA770 with Silicone Cover 010 12829 00 Retrofit Kit 600 700 to RA770 with Silicone Cover Integrate your Apollo RA770 marine stereo seamlessly into an existing Fusion 755 Series, 750 Series or 650 Series cutout with the MS RA770 Retrofit Kit. The dust cover is shaped to perfectly fit your Apollo RA770 when installed using this retrofit kit, accommodating the larger screw covers. Product : FUSION RETROFIT KIT 600 700 TO