Any ideas to install an auxiliary Volt and Ammeter and oil Pressure gauge on a 2019 Grand Caravan GT? This model's instrument cluster does not have these gauges. Battery was going and the only way I could tell was my A/C fan was going higher and lower with the RPM's. The van is Black on Black and MINT. I want to have it look professional and not just screw in a 3 hold mount under the dash.. Thank you!