Need Help! We have a 2018 Slingshot SLR and we are trying to do an audio upgrade. We purchased from Slingmods the 300W Kicker 4-Channel Amp & Mounting Plate to the factory Polaris Slingshot Ride Command Stereo System. The slingshot has the PMX-P2 Audio and Speaker Kit by Rockford Fosgate. The instructions say to us the SP-HSE84 speaker harness to connect but the pin connections are different. Has anyone used the Slingmods Amp setup with these speakers? How did you connect them?