Havoc GP-1 HD Softail Gauge Stereo Head UnitHavoc GP 1 HD Softail Gauge Stereo Head Unit If you want real audio control on a Softail, it starts with a head unit you can actually see while riding and use with glove friendly controls. The Havoc GP 1 Softail Head Unit Kit puts the Aquatic AV GP 1 waterproof Bluetooth gauge stereo up where it belongsintegrated into a Havoc Motorcycles billet aluminum gauge pod and secured to your bars with a replacement billet handlebar clamp designed specifically