So Im planning to replace stereo with tablet and since I have

>>17875841
Try a higher CCA battery. Cop cars have bigger batteries for all their computers and lights.

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>>17875841
>It got me thinking that alternator has its limits
Then you should find out the model number and rating of the alternator in your car. If your owner's manual doesn't have a item specifications list at the back, then you may have to go to your dealer parts department and inquire about the specs. Or go to your NAPA or some other place to see what the equivalent replacement alternator is like. Of course, 3rd party alts will probably be different or higher as they are just equivalencing your OEM alt to one of the generic alts. At those places, the key thing is the pulley, mount location, and power connector location. So the same alternator might have different pulley configurations. When they do that, it becomes inaccurate as a measure of what your OEM alt capacity is other than a ballpark figure.

Picture: Note carefully that the smaller pulley of the two added alts required a greater wrap-around by the serpentine belt. The belt geometry needed by some alts may thus eliminate them from consideration if you don't have the space for the extra space the belt needed to develop that wrap.