Depends on why it is leaking.
Park the truck further away from the Honda.
To repair a leaky sunroof, you need to clean the drainage tubes on your sunroof. You can do this by sticking a thin wire or coat hanger in the drain. Then pour some clean water through the drainage tube.
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You probably need to buy a new gasket for it.
$20 to $400, just depends.
To fix a leaky PVC joint, you can try tightening the joint, applying PVC primer and cement, or using a repair coupling.
You can find a professional plumber to repair a leaky pipe in your wall by searching online for local plumbing services, asking for recommendations from friends or family, or contacting a plumbing company directly.
You can replace the rubber gasket.
This is a machine shop procedure which the head has to come off to accomplish.
You will need to seal it with some sort of waterproof coating that is NON TOXIC.
You can find toilet repair parts for fixing a leaky toilet at hardware stores, home improvement stores, or online retailers that sell plumbing supplies. Look for parts such as flappers, fill valves, flush valves, and gaskets to help repair the leak.
Leaky weatherstripping around the doors.