I cam seeking advice selecting a solar charge controller which has both solar panel and alternator charging input. I've read about the CTEK D250SE, Dual Input 20A. It's a stretching my budget. But it's for an SUV with not a lot of room to install it. This unit seems to be compact and combines solar and alternator functions. I am seeking someone who may have some knowledge or experience with this unit: CTEK D250SE, Dual Input 20A