SSV Works GN-5A 5-speaker audio upgrade kit for the Polaris General: contains MRB3 receiver, 4 speakers, 10" sub, 4-channel amp, and mounting kits at Crutchfield
CARME-105BNIX | Installation Speaker System with 5” Loudspeakers & Amplifier – Sound Town
Boss Audio 12 Inch P126DVC Ported Subwoofer + 4) 6.5" Speakers + 5 Channel Amp - Walmart.com
Amazon.com: Pyle Home Marine Car Amplifier - 4-Channel Compact 400 Watt RMS 4 OHM Full Range Monoblock Stereo & Waterproof - Wireless Bluetooth Receiver Audio Speaker w/ LCD Digital Screen (PFMRA450BW) : Electronics
How to Bridge an Amplifier: 7 Steps (with Pictures) - wikiHow
Dual Electronics - Digital 4 Channel MOSFET Amplifier - DA10004D
How To Wire a 4 Channel Amp To 6 Speakers - Speakers Mag - Medium
Amplifier wiring diagrams
4 - USCMR65 - 6.5 Inch Midrange Speaker Combo with JP234 - 4 Channel Amplifier - Down4Sound Shop
2 PAIR (4) - SFX65 - 6.5 Inch Midrange Speaker Combo with JP84 - 4 Channel Amplifier - Down4Sound Shop
8 Speakers To 4 Channel Amp Wiring - BoomSpeaker
How to Connect 4 Speakers to a 2-Channel Amp: 3 Best Methods & Useful Tips
Wiring help needed asap | Polaris Slingshot Forum
How To Wire A 4 Channel Amp To 4 Speakers And A Sub: A Detailed Guide With Diagrams