I have a Kala ukulele, which uses Kala brand of pickup and EQ and volume control. Kala is the most popular selling brand of ukulele in the US. The G10 was flashing green after insertion but no sound from the amp. I reversed the wiring of the sleeve and the ring on the jack and still no sound from the amp. A friend of mine has a Kala, different model, and he also cannot get his G10 to work. We are both awaiting a Hosa right angle adapter. This is frustrating, why doesn't Line 6 ship an adapter with the product? Close to $200 and they don't include a cheap adapter??? Why hassle the customer?